US20140076794A1 - Filtering device - Google Patents
Filtering device Download PDFInfo
- Publication number
- US20140076794A1 US20140076794A1 US13/261,727 US201213261727A US2014076794A1 US 20140076794 A1 US20140076794 A1 US 20140076794A1 US 201213261727 A US201213261727 A US 201213261727A US 2014076794 A1 US2014076794 A1 US 2014076794A1
- Authority
- US
- United States
- Prior art keywords
- filtering
- support structure
- base plate
- filtering device
- filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001914 filtration Methods 0.000 title claims abstract description 97
- 239000012530 fluid Substances 0.000 claims description 29
- 238000004891 communication Methods 0.000 claims description 5
- 230000000717 retained effect Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011001 backwashing Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/02—Filtering elements having a conical form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/04—Supports for the filtering elements
- B01D2201/0407—Perforated supports on both sides of the filtering element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/04—Supports for the filtering elements
- B01D2201/0415—Details of supporting structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/04—Supports for the filtering elements
- B01D2201/043—Filter tubes connected to plates
- B01D2201/0453—Filter tubes connected to plates positioned between at least two plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/24—Tools used for the removal of filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/29—Filter cartridge constructions
- B01D2201/291—End caps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/60—Shape of non-cylindrical filtering elements
Definitions
- the invention relates to a filtering device comprising a plurality of filtering elements, the bodies of which define a longitudinal axis, said filtering elements being arranged adjacently to one another in a housing such that the longitudinal axes of the filtering elements run parallel to one another, and the bodies of at least some of the filtering elements have a shape that deviates from a circular cylinder in at least one part of the body length.
- the invention further relates to a filtering element that is provided for use in such a filtering device.
- Filtering devices of this kind are often used in technical facilities for the purpose of filtering process liquids, pressure liquids such as hydraulic oils, coolant lubricants, for treating liquid media and the like. Facilities that use such filtering devices can often only provide a limited amount of usable space for incorporating or attaching the filtering device. However, to be able to filter correspondingly large volume flows, the filtering surface that is provided by the filtering device must be sufficiently large.
- a known filtering device of the kind as specified above has been described, for example, in DE 10 2004 026 862 A1; said device provides for filtering elements having bodies that deviate from the cross-section of a circular cylinder form, having the form of a Reuleaux triangle instead. In comparison to devices having circular cylindrical or block-shaped filtering elements, the shape of the Reuleaux triangle allows for accommodating a larger filtering area inside a given installation space.
- this object is achieved with a filtering device having any and all of the characterizing features as set forth in claim 1 .
- this object - is achieved according to the invention in that the filtering elements with cross-sections deviating from the cross-section of the circular cylinder shape have cross-sections the size of which changes, at least in part, from one end to the other end, and in that said filtering elements are oriented in such a way inside the housing that, in filtering elements that are adjacently disposed relative to each other, such areas with larger cross-sections are paired with such areas having smaller cross-sections.
- filtering elements in form of tapered candle filters are used, which are disposed adjacently in relation to each other and with the tapering thereof oriented in opposite directions, respectively.
- the filtering elements that are arranged into a group of adjacently disposed filtering elements delimit funnel-type fluid spaces inside the filter housing.
- Obvious combinations of convex external geometries with concave structures are also possible. This way, for example, it is possible to combine layer-cake-like filtering elements with each other by providing that one convex layer-cake-like ring, in each case, engages in a concave recess between two adjacently disposed convex layer-cake-like rings of the other filtering element, preferably while maintaining a radial spacing.
- the filtering elements which are preferably tapered candle filters, are disposed inside the filter housing between a planar base plate and a cover plate that is disposed in a parallel plane in relation to the former.
- the corresponding result is a pot-shaped filter housing that receives the filtering elements by means of mounts on the base plate. Furthermore, an axial spacing exists between the ends of the filtering elements in relation to the top cover plate.
- the base plate can be configured as a connection plate and provided with fluid openings that can be used to bring fluid passages in fluid communication with the inner filtering cavities of the filtering elements, which are held by the ends thereof on the base plate.
- a closure piece located at the ends of the tube-like support structure on the filter candles, where the inner filtering cavities are allocated to the cover plate, and said closure piece seals said filtering cavity in a fluid-proof manner.
- the arrangement can be advantageously configured such that the tube-like support structure is extended by a connection tube, which engages in the related fluid opening and that is axially secured on the base plate.
- candle filters that include an external tube-like support structure
- said support structure can form a radially protruding annular edge on the thicker end thereof.
- this edge can be a contact area on the base plate.
- the collar can include a step constituting a shoulder, which is disposed in the radial plane, and the annular edge of the external support structure of the respectively adjacent candle filter grips there-across.
- the annular edge of the external support structure thus constitutes a stop element for axially securing the candle filters inside the group.
- spacers respectively, on the collar of the external support structure and on the closed thicker end of the internal support structure; preferably, they are formed thereto in one piece.
- Another subject-matter of the present invention is a filtering element that is provided for use in the context of a filtering device according to any one of the claims 1 to 12 and having the characteristics of the claim 13 .
- FIG. 1 is a schematically simplified functional sketch of a perspective transverse view of a part of the base plate of the filter housing and a partial group of the filtering elements of an embodiment of the filtering device according to the invention disposed thereupon;
- FIG. 2 is a schematically simplified longitudinal section of a view of only a partial group of tapered candle filters on a partial section of the base plate of the embodiment;
- FIG. 4 is a perspective transverse view, drawn as enlarged in comparison to FIG. 3 , of only the more slender end of the external support structure from FIG. 3 ;
- the candle filters 3 are oriented with the more slender ends thereof towards the base plate 1 and, in the respectively given adjacent row, the candle filters 3 are oriented with the thicker ends thereof toward the base plate 1 ; moreover, the sequential rows of candle filters 3 are offset in relation to one another, respectively following such an arrangement in that the candle filters 3 that are comprised in consecutive rows are disposed inside the gaps left by the respectively previous row.
- the candle filters 3 are held or clamped between the cover plate and the base plate 1 in such a manner that the fluid passages 7 and 9 , see FIGS. 2 and 5 , which are disposed at the thicker end or the more slender end of the candle filters 3 , respectively, are in fluid communication with the openings 5 of the base plate 1 .
- These fluid passages 7 , 9 constitute the outlet from of the respective internal filter cavity 11 of the candle filters 3 , constituting the clean side during the filtration process, such that the cleaned fluid flows out of the filter housing via the openings 5 of the base plate 1 .
- the candle filters 3 each feature an identical tapering.
- the ends of the filter cavities 11 are configured differently, depending on whether the candle filters 3 are disposed in fluid communication with the openings 5 by the more slender ends thereof or by the thicker ends thereof. More precisely, the filter cavity 11 , which is open at the bottom end due to the passages 7 and 9 , and connected by the openings 5 of the base plate 1 , is closed at the end that is depicted as the top end in the drawing.
- tapered candle filters it is known in the art that a tube-like internal support structure 13 defines the internal filter cavity 11 . As most clearly visible in FIG.
- a filter mat 21 , disposed on the outside of the internal support structure 13 can be provided, for example, as a non-woven filtration material, such as a non-woven polyester or the like, which is placed around the support structure 13 ; alternately, a fiber application can be directly applied to the support structure 13 by means of a melt-blown process. It is understood that the type and specification of the respective filter medium 21 will depend on the purpose of use and the operating conditions of the filtering device.
- the annular edges 31 on the external support structure 29 form a kind of toothing with the more slender ends of the external support structure 29 of adjacent candle filters to provide mutual, axial cohesion of the group of the candle filters 3 .
- the external support structures 29 include on the ends thereof a collar 43 that forms a type of a hollow cylinder, and the cylinder part 15 of the internal support structure 13 passes there-through.
- Said collar 43 constitutes a circumferential step 45 that forms a shoulder area 47 , which is disposed in the radial plane, and that reaches over the annular edge 31 of the thicker end of the external support structure 29 of the respectively adjacent candle filter 3 , as demonstrated particularly in FIGS. 5 and 6 .
- the untreated side 51 is sealed off from the clean side, that is located inside the filter cavity 11 , by means of sealing edges 53 that are formed, as hinted at in FIG. 5 , on the collar 43 of the internal support structure 13 . Furthermore, there exists the option of backwashing the candle filters 3 by reversing the fluid flow from the clean side 11 in the direction of the untreated side 51 .
Abstract
Description
- The invention relates to a filtering device comprising a plurality of filtering elements, the bodies of which define a longitudinal axis, said filtering elements being arranged adjacently to one another in a housing such that the longitudinal axes of the filtering elements run parallel to one another, and the bodies of at least some of the filtering elements have a shape that deviates from a circular cylinder in at least one part of the body length. The invention further relates to a filtering element that is provided for use in such a filtering device.
- Filtering devices of this kind are often used in technical facilities for the purpose of filtering process liquids, pressure liquids such as hydraulic oils, coolant lubricants, for treating liquid media and the like. Facilities that use such filtering devices can often only provide a limited amount of usable space for incorporating or attaching the filtering device. However, to be able to filter correspondingly large volume flows, the filtering surface that is provided by the filtering device must be sufficiently large. With regard to this requirement, a known filtering device of the kind as specified above has been described, for example, in DE 10 2004 026 862 A1; said device provides for filtering elements having bodies that deviate from the cross-section of a circular cylinder form, having the form of a Reuleaux triangle instead. In comparison to devices having circular cylindrical or block-shaped filtering elements, the shape of the Reuleaux triangle allows for accommodating a larger filtering area inside a given installation space.
- On the basis of this prior art, it is the object of the present invention to provide a filtering device that allows for a further improvement of the ratio between the installation space and the achievable filtering area.
- According to the invention, this object is achieved with a filtering device having any and all of the characterizing features as set forth in
claim 1. - As specified in the characterizing portion of
claim 1, this object-is achieved according to the invention in that the filtering elements with cross-sections deviating from the cross-section of the circular cylinder shape have cross-sections the size of which changes, at least in part, from one end to the other end, and in that said filtering elements are oriented in such a way inside the housing that, in filtering elements that are adjacently disposed relative to each other, such areas with larger cross-sections are paired with such areas having smaller cross-sections. Correspondingly, in a group of filtering elements containing filtering elements that are disposed next to each other and paired with each other and thereby forming a single group, more slender areas are disposed across from the thicker areas of the adjacently disposed partner element, such that any free spaces or unused “dead space” within the group can be minimized, meaning it is possible to achieve a correspondingly high packing density with an optimally large filtering area. - Especially advantageously, filtering elements in form of tapered candle filters are used, which are disposed adjacently in relation to each other and with the tapering thereof oriented in opposite directions, respectively. In this case, the filtering elements that are arranged into a group of adjacently disposed filtering elements delimit funnel-type fluid spaces inside the filter housing. Obvious combinations of convex external geometries with concave structures are also possible. This way, for example, it is possible to combine layer-cake-like filtering elements with each other by providing that one convex layer-cake-like ring, in each case, engages in a concave recess between two adjacently disposed convex layer-cake-like rings of the other filtering element, preferably while maintaining a radial spacing. Aside from such a stepwise ring arrangement, continually changing structures are conceivable as well, which provide for a barrel-like filtering element having a central, convexly protruding barrel part that engages, leaving a spacing, in a concave recess of an adjacent filtering element having a hose-like configuration, such that a rotational hyperboloid is formed. The abovementioned spacings between individual filtering elements are necessary for any sensible routing of the fluids inside the filter housing, and all of the filtering elements constituted in this manner are preferably configured as rotationally symmetrical.
- In especially advantageous embodiments, however, the filtering elements, which are preferably tapered candle filters, are disposed inside the filter housing between a planar base plate and a cover plate that is disposed in a parallel plane in relation to the former. The corresponding result is a pot-shaped filter housing that receives the filtering elements by means of mounts on the base plate. Furthermore, an axial spacing exists between the ends of the filtering elements in relation to the top cover plate.
- Especially advantageously, the base plate can be configured as a connection plate and provided with fluid openings that can be used to bring fluid passages in fluid communication with the inner filtering cavities of the filtering elements, which are held by the ends thereof on the base plate.
- With candle filters having a tube-like support structure and a filtering medium surrounding the inside filtering cavity, especially advantageously, it is possible to provide for an arrangement whereby the ends of the tube-like support structure, which are allocated to the base plate, constitute the fluid passages and engage with the fluid openings of the base plate, when the filtering element is in the functional position thereof.
- On a base plate that serves as a connection plate, it is possible to provide a closure piece located at the ends of the tube-like support structure on the filter candles, where the inner filtering cavities are allocated to the cover plate, and said closure piece seals said filtering cavity in a fluid-proof manner.
- Regarding the connection of the candle filters that are directed toward the base plate by the slender ends thereof, the arrangement can be advantageously configured such that the tube-like support structure is extended by a connection tube, which engages in the related fluid opening and that is axially secured on the base plate.
- If candle filters are provided that include an external tube-like support structure, said support structure can form a radially protruding annular edge on the thicker end thereof. For candle filters having the thick end thereof oriented toward the base plate, this edge can be a contact area on the base plate.
- On the more slender end, the internal support structure can form a cylinder part, which passes through a hollow cylindrical collar on the slender end of the external support structure, wherein the collar is axially secured on the cylinder part. After disengaging this security means, the external support structure of the candle filter can be pulled off, for example, to replace the filter medium.
- Especially advantageously, the collar can include a step constituting a shoulder, which is disposed in the radial plane, and the annular edge of the external support structure of the respectively adjacent candle filter grips there-across. The annular edge of the external support structure thus constitutes a stop element for axially securing the candle filters inside the group.
- To support the candle filters on the cover plate, it is possible to provide spacers, respectively, on the collar of the external support structure and on the closed thicker end of the internal support structure; preferably, they are formed thereto in one piece.
- Another subject-matter of the present invention is a filtering element that is provided for use in the context of a filtering device according to any one of the
claims 1 to 12 and having the characteristics of theclaim 13. - However, groups of filtering elements having varying cross-sections that are combined with such filtering elements having identical cross-sections inside the same filter housing, for example in the customary cylindrical design, also fall within the scope of the present invention.
- The invention will be described in further detail below based on the embodiment that is represented in the drawing.
- Shown are as follows:
-
FIG. 1 is a schematically simplified functional sketch of a perspective transverse view of a part of the base plate of the filter housing and a partial group of the filtering elements of an embodiment of the filtering device according to the invention disposed thereupon; -
FIG. 2 is a schematically simplified longitudinal section of a view of only a partial group of tapered candle filters on a partial section of the base plate of the embodiment; -
FIG. 3 is a perspective view of only the external support structure of a candle filter for use in the embodiment of the filtering device; -
FIG. 4 is a perspective transverse view, drawn as enlarged in comparison toFIG. 3 , of only the more slender end of the external support structure fromFIG. 3 ; -
FIG. 5 is a sectional view, drawn as enlarged in comparison toFIG. 2 , of only the part fromFIG. 2 that borders on the base plate; -
FIG. 6 is a sectional view, drawn as correspondingly enlarged, of only the partial area fromFIG. 2 that borders on the cover plate, which is not shown; and -
FIG. 7 is a perspective transverse view, drawn as greatly enlarged in comparison toFIG. 1 , of only the partial area of the group of candle filters from the group as shown inFIG. 1 that borders on the cover plate. -
FIG. 1 only depicts a partial section of thebase plate 1, which is part of the embodiment of the filtering device according to the invention that shall be presently described and that is part of a filter housing, which is not shown in further detail, and accommodates a plurality of filtering elements formed as tapered candle filters 3 (inFIG. 1 , not all of the candle filters are identified by reference numerals). As shown inFIG. 1 , thecandle filters 3 are grouped as densely packed, wherein the order thereof as provided is as follows: - in one given row, the
candle filters 3 are oriented with the more slender ends thereof towards thebase plate 1 and, in the respectively given adjacent row, thecandle filters 3 are oriented with the thicker ends thereof toward thebase plate 1; moreover, the sequential rows ofcandle filters 3 are offset in relation to one another, respectively following such an arrangement in that thecandle filters 3 that are comprised in consecutive rows are disposed inside the gaps left by the respectively previous row. - Only a partial group of the total number of
candle filters 3 is depicted inFIG. 1 . The side wall, constituting a hollow cylinder, and the cover plate disposed in a parallel plane opposite in relation to thebase plate 1 have also been omitted. During the filtration process, the internal space of the filter housing that surrounds thecandle filters 3 constitutes the untreated side 51 (FIGS. 5 and 6 ), and untreated fluid that must be cleaned can be supplied thereto via a fluid inlet. Thebase plate 1 is configured as a connection plate and includes afluid opening 5 for each candle filter 3 (inFIG. 1 , not all of the candle filters are identified by reference numerals). Thecandle filters 3 are held or clamped between the cover plate and thebase plate 1 in such a manner that thefluid passages 7 and 9, seeFIGS. 2 and 5 , which are disposed at the thicker end or the more slender end of thecandle filters 3, respectively, are in fluid communication with theopenings 5 of thebase plate 1. Thesefluid passages 7, 9 constitute the outlet from of the respectiveinternal filter cavity 11 of thecandle filters 3, constituting the clean side during the filtration process, such that the cleaned fluid flows out of the filter housing via theopenings 5 of thebase plate 1. - It can be clearly discerned in
FIGS. 2 , 3 and 6 that thecandle filters 3 each feature an identical tapering. The ends of thefilter cavities 11, however, are configured differently, depending on whether thecandle filters 3 are disposed in fluid communication with theopenings 5 by the more slender ends thereof or by the thicker ends thereof. More precisely, thefilter cavity 11, which is open at the bottom end due to thepassages 7 and 9, and connected by theopenings 5 of thebase plate 1, is closed at the end that is depicted as the top end in the drawing. Regarding tapered candle filters, it is known in the art that a tube-likeinternal support structure 13 defines theinternal filter cavity 11. As most clearly visible inFIG. 6 , on thecandle filters 3 that are closed at the more slender ends thereof, acylinder part 15, which is formed in one piece to the end of thesupport structure 13, constitutes the closure of thefilter cavity 11. However, on the thicker, closed end, anend part 19 of theinternal support structure 13, with screwed-inclosure plug 17 that is configured as having a closed wall part, constitutes the closure piece of theinternal filter cavity 11. - A
filter mat 21, disposed on the outside of theinternal support structure 13 can be provided, for example, as a non-woven filtration material, such as a non-woven polyester or the like, which is placed around thesupport structure 13; alternately, a fiber application can be directly applied to thesupport structure 13 by means of a melt-blown process. It is understood that the type and specification of therespective filter medium 21 will depend on the purpose of use and the operating conditions of the filtering device. - At the end that is oriented toward the
base plate 1, theinternal support structure 13 forms, together with the closedend part 19, aconnection piece 23 for the engagement in thecorresponding opening 5 of thebase plate 1. Thecandle filters 3 that are oriented with the more slender ends thereof toward thebase plate 1 include, instead of thecylinder part 15 serving as closure piece, aconnection tube 25 that is formed in one piece with theinternal support structure 13 and passes through therelated opening 5. Thetube 25, and thereby thecandle filter 3, is axially secured inside theopening 5. In the present example, abayonet catch 27 is provided for thispurpose 27. Alternately, providing a clip for securing the screwed connection is also possible. - In the present example, the
candle filters 3 include an external, tube-like support structure 29 that surrounds the outer side of thefilter medium 21, which is shown separately inFIG. 3 . Theouter support structure 29 is a grate-like structure, like theinternal support structure 13, preferably press-formed in one piece of a plastic material, and it can accommodate a through-flow of fluid through the openings that are provided by the grate structure. At the thicker end, thesupport structure 29 forms a radially protrudingannular edge 31, which rests against thebase plate 1 in the installed state. Formed in one piece with the opposite, closed end of thesupport structure 29 is aremoval part 33, showing aremoval ring 35 for manually extracting the filtering element from the filter housing. Theouter support structure 29 is connected to thecylinder part 15 by a bayonet attachment means 37, which is hinted at only inFIG. 4 . After releasing thebayonet 37, theexternal support structure 29 can be drawn off and removed. Corresponding to theremoval part 33 of the respectively closed ends of the candle filters 3, theremoval parts 39, which are disposed on the thicker, closed ends, are provided with the removal rings 41, corresponding to the removal rings 35 on the more slender ends. - The annular edges 31 on the
external support structure 29 form a kind of toothing with the more slender ends of theexternal support structure 29 of adjacent candle filters to provide mutual, axial cohesion of the group of the candle filters 3. More precisely, as shown particularly inFIG. 6 , theexternal support structures 29 include on the ends thereof acollar 43 that forms a type of a hollow cylinder, and thecylinder part 15 of theinternal support structure 13 passes there-through. Saidcollar 43 constitutes acircumferential step 45 that forms ashoulder area 47, which is disposed in the radial plane, and that reaches over theannular edge 31 of the thicker end of theexternal support structure 29 of the respectivelyadjacent candle filter 3, as demonstrated particularly inFIGS. 5 and 6 . - With the group of
candle filters 3 cohesively held together in this manner by thebase plate 1, theuntreated side 51 is sealed off from the clean side, that is located inside thefilter cavity 11, by means of sealingedges 53 that are formed, as hinted at inFIG. 5 , on thecollar 43 of theinternal support structure 13. Furthermore, there exists the option of backwashing the candle filters 3 by reversing the fluid flow from theclean side 11 in the direction of theuntreated side 51. - In the preceding, the tapered
candle filters 3 were described as comprising multiple structural parts withsupport structures
Claims (14)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011013186.8 | 2011-03-05 | ||
DE102011013186A DE102011013186B4 (en) | 2011-03-05 | 2011-03-05 | filter means |
DE102011013186 | 2011-03-06 | ||
PCT/EP2012/000119 WO2012119674A1 (en) | 2011-03-05 | 2012-01-12 | Filtering device |
Publications (2)
Publication Number | Publication Date |
---|---|
US20140076794A1 true US20140076794A1 (en) | 2014-03-20 |
US9421481B2 US9421481B2 (en) | 2016-08-23 |
Family
ID=45491586
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/261,727 Active 2032-11-16 US9421481B2 (en) | 2011-03-05 | 2012-01-12 | Filtering device |
Country Status (6)
Country | Link |
---|---|
US (1) | US9421481B2 (en) |
EP (1) | EP2683459B1 (en) |
JP (1) | JP6151645B2 (en) |
CN (1) | CN103402599B (en) |
DE (1) | DE102011013186B4 (en) |
WO (1) | WO2012119674A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9725344B1 (en) | 2014-09-24 | 2017-08-08 | Dow Global Technologies Llc | Spiral wound filtration assembly including integral bioreactor |
US10143945B2 (en) * | 2012-10-18 | 2018-12-04 | Hydac Filtertechnik Gmbh | Filter device |
US10286361B2 (en) | 2015-04-16 | 2019-05-14 | Dow Global Technologies Llc | Filtration assembly including spiral wound bioreactors and hyperfiltration membrane modules |
US10335737B2 (en) | 2015-04-16 | 2019-07-02 | Dow Global Technologies Llc | Filtration assembly including spiral wound bioreactors and membrane modules positioned in separate pressure vessels |
US11224830B2 (en) * | 2018-08-15 | 2022-01-18 | Mann+Hummel Gmbh | Conical filter element with funnel directing particles to a trap |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9466545B1 (en) | 2007-02-21 | 2016-10-11 | Amkor Technology, Inc. | Semiconductor package in package |
DE102017010856A1 (en) | 2017-11-15 | 2019-05-16 | Hydac Filter Systems Gmbh | filter means |
DE202017007254U1 (en) | 2017-11-15 | 2020-04-29 | Hydac Filter Systems Gmbh | Filter device |
CN111054114A (en) * | 2018-10-17 | 2020-04-24 | 中国石油天然气集团有限公司 | Liquid filter |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2921686A (en) * | 1956-12-03 | 1960-01-19 | Alpha Tank Company Inc | Fluid filtering apparatus with removable filter holder |
US3151962A (en) * | 1960-11-25 | 1964-10-06 | American Air Filter Co | Disposable unit type fluid filter |
US3216572A (en) * | 1961-11-24 | 1965-11-09 | Bendix Corp | Filter unit |
DE20112561U1 (en) * | 2001-07-17 | 2001-10-11 | Pro Card Service Geissbuehler | filter |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4469594A (en) * | 1982-11-12 | 1984-09-04 | Harnischfeger Corporation | High pressure hydraulic system and self-cleaning filter assembly therefor |
JPS6024313U (en) * | 1983-07-27 | 1985-02-19 | トリニテイ工業株式会社 | filter |
US4702754A (en) * | 1986-04-04 | 1987-10-27 | Blocker William C | Vapor delivery pressure test adapter |
JPH01148725U (en) * | 1988-04-01 | 1989-10-16 | ||
WO1994005396A1 (en) * | 1992-08-31 | 1994-03-17 | Porous Media Corporation | Conical coalescing filter |
DE69226199T2 (en) * | 1992-08-31 | 1999-02-04 | Porous Media Corp | CONICAL KOALESZIERFILTER |
JPH0761410A (en) * | 1993-08-26 | 1995-03-07 | Kanto Plant Service Kk | Boxing machine for conical material |
DE4338100C1 (en) * | 1993-11-08 | 1994-12-01 | Daimler Benz Ag | Filter device |
JPH0975614A (en) * | 1995-09-07 | 1997-03-25 | Central Filter Kogyo Kk | Filter apparatus |
JPH10151311A (en) * | 1996-11-25 | 1998-06-09 | Mitsubishi Plastics Ind Ltd | Porous plastic filter and filter unit |
DE19711589A1 (en) | 1997-03-20 | 1998-09-24 | Hydac Filtertechnik Gmbh | Slotted screen filter element and backwash filter device for receiving the same |
JP3907089B2 (en) * | 1998-01-08 | 2007-04-18 | ザ・インクテック株式会社 | Filter support basket and filter bag mounting jig for the filter support basket |
JP2003320204A (en) * | 2002-04-30 | 2003-11-11 | Nok Corp | Filter apparatus |
JP3950766B2 (en) * | 2002-08-08 | 2007-08-01 | インテグリス・インコーポレーテッド | Filter cartridge |
DE102004026862A1 (en) * | 2004-06-02 | 2005-12-29 | Hydac Filtertechnik Gmbh | filter element |
US9056281B2 (en) * | 2005-07-11 | 2015-06-16 | Entegris, Inc. | Filtration module |
CN201073567Y (en) * | 2007-04-03 | 2008-06-18 | 刘威 | Reactive filter strainer type filtering equipment |
JP2009285570A (en) * | 2008-05-29 | 2009-12-10 | Nippon Yusen Kk | Strainer |
GB0812457D0 (en) | 2008-07-08 | 2008-08-13 | Parker Hannifin U K Ltd | A Filter |
-
2011
- 2011-03-05 DE DE102011013186A patent/DE102011013186B4/en active Active
-
2012
- 2012-01-12 JP JP2013556981A patent/JP6151645B2/en active Active
- 2012-01-12 EP EP12700314.3A patent/EP2683459B1/en active Active
- 2012-01-12 WO PCT/EP2012/000119 patent/WO2012119674A1/en active Application Filing
- 2012-01-12 CN CN201280011807.4A patent/CN103402599B/en active Active
- 2012-01-12 US US13/261,727 patent/US9421481B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2921686A (en) * | 1956-12-03 | 1960-01-19 | Alpha Tank Company Inc | Fluid filtering apparatus with removable filter holder |
US3151962A (en) * | 1960-11-25 | 1964-10-06 | American Air Filter Co | Disposable unit type fluid filter |
US3216572A (en) * | 1961-11-24 | 1965-11-09 | Bendix Corp | Filter unit |
DE20112561U1 (en) * | 2001-07-17 | 2001-10-11 | Pro Card Service Geissbuehler | filter |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10143945B2 (en) * | 2012-10-18 | 2018-12-04 | Hydac Filtertechnik Gmbh | Filter device |
US9725344B1 (en) | 2014-09-24 | 2017-08-08 | Dow Global Technologies Llc | Spiral wound filtration assembly including integral bioreactor |
US10358366B2 (en) | 2014-09-24 | 2019-07-23 | Dow Global Technologies Llc | Spiral wound filtration assembly including integral bioreactor |
US10286361B2 (en) | 2015-04-16 | 2019-05-14 | Dow Global Technologies Llc | Filtration assembly including spiral wound bioreactors and hyperfiltration membrane modules |
US10335737B2 (en) | 2015-04-16 | 2019-07-02 | Dow Global Technologies Llc | Filtration assembly including spiral wound bioreactors and membrane modules positioned in separate pressure vessels |
US11224830B2 (en) * | 2018-08-15 | 2022-01-18 | Mann+Hummel Gmbh | Conical filter element with funnel directing particles to a trap |
Also Published As
Publication number | Publication date |
---|---|
JP2014507278A (en) | 2014-03-27 |
US9421481B2 (en) | 2016-08-23 |
DE102011013186B4 (en) | 2013-01-03 |
EP2683459A1 (en) | 2014-01-15 |
WO2012119674A1 (en) | 2012-09-13 |
DE102011013186A1 (en) | 2012-09-06 |
EP2683459B1 (en) | 2019-03-13 |
CN103402599B (en) | 2016-03-02 |
CN103402599A (en) | 2013-11-20 |
JP6151645B2 (en) | 2017-06-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20140076794A1 (en) | Filtering device | |
JP7146790B2 (en) | filter device | |
CN105080207B (en) | Filter assemblies, filter cell and the method for filtering liquid | |
RU2716682C2 (en) | Air filter and filter element | |
JP7448479B2 (en) | Fuel filter with coalescer | |
CN104275015B (en) | Double bag type filters | |
CN105683556B (en) | Filter element with wavy sealing element | |
JP2008520430A5 (en) | ||
US10525384B2 (en) | Filter element and filtering apparatus | |
KR102187611B1 (en) | Filtration unit with automatic backwash means | |
US10981092B2 (en) | Filter device | |
DE102014002631B4 (en) | Filter element and fluid filter with radial vent hole | |
WO2012104221A1 (en) | Replaceable filter, and filter head of a filter | |
US20170203247A1 (en) | Axial flow filter | |
US20050258092A1 (en) | Filter element for filtering fluids | |
EP3793707A1 (en) | Intermediate cover of a filter housing of a filter for purifying liquid fluids and filter insert, filter and use | |
EP3784364B1 (en) | Cartridge group for fuel filtration | |
JP3137987U (en) | Backwash type filtration device | |
RU191630U1 (en) | Section filter | |
EP3126030A1 (en) | Debris drain filter system and cartridge | |
CN111140416A (en) | Filter element group for filtering fuel | |
CN113423483A (en) | Filter | |
PL170559B1 (en) | Compound filter | |
KR20130095379A (en) | Device for purifing water | |
PL195636B1 (en) | Oil filter with exchangeable filtering diaphragm |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: HYDAC FILTERTECHNIK GMBH, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SAKRASCHINSKY, MICHAEL;REEL/FRAME:031278/0933 Effective date: 20130909 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
MAFP | Maintenance fee payment |
Free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY Year of fee payment: 4 |
|
MAFP | Maintenance fee payment |
Free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY Year of fee payment: 8 |